What Causes the Squeaking Sound When Shifting to P Gear Before the Car Stops Completely?

1 Answers
AlinaRose
07/30/25 6:58am
The reason for the squeaking sound when shifting to P gear before the car stops completely is the interference between the locking mechanism and the gear. When the car is not fully stopped, do not shift into P gear, as this can damage the locking mechanism of the P gear. Automatic transmission cars are equipped with a P gear, which is the parking gear used when parking and turning off the engine. After shifting into P gear, the car remains stationary. Automatic transmission cars also have an N gear. Both N gear and P gear can be used when parking, but there are differences between them. After shifting into P gear, the locking mechanism locks the gear of the transmission, which indirectly locks the wheels. If the handbrake is not engaged, the car cannot move. When shifting into N gear, there is no locking mechanism to secure the transmission gear, so the car can move if the handbrake is not applied. N gear is used for short-term parking without turning off the engine, while P gear is used when parking and turning off the engine.
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